unattractive, the obama administration needs to see if there is a path through which it can pressure iran to make a deal. in a thoughtful essay in the current issue of "foreign affairs" the columbia scholar jurvis points out that this kind of coercive diplomacy, at least from washington, has rarely worked. he points out in panama, 1989, iraq, 1990, serbia, 1998, afghanistan, 2001 and iraq, 2003, washington tried sanctions pressure and the threat of force to get leaders to change course, it didn't work. and washington had to make good on its threat to go to war. with north korea, coercive diplomacy also failed, but in this case, washington decided against military action choosing, instead, to contain the regime. making coercive diplomacy requires a mix of threats and promises. with regard to iran, the administration has made the threats plenty of times. with clarity and credibility. but while the sticks have been handled shrewdly, the carrots have not. the united states is unable to define for itself or for the world what would be an acceptable deal and, most importantly, what it is willin